<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        总价：{{total}
        <show></show>
    </div>
    <script src="../js/vue.js"></script>
    <script>
        Vue.component("show",{
            template:`
            <div>
            <button @click="add">点击增加</button>
            </div>
            `
        });
        new Vue({
            el:"#app",
            data:{
                total:""
            }
        }),
        methods:{
            
        }
    </script>
</body>
</html>